import Vue from 'vue'
import VueRouter from 'vue-router'
//导入子组件
import Login from '@/components/Login.vue'
import Home from '@/components/Home.vue'
import Welcome from '@/components/Welcome.vue'
import Users from '@/components/user/Users.vue'
import Rigths from '@/components/power/Rigths.vue'
import Roles from '@/components/power/Roles.vue'
import Cate from  '@/components/goods/Cate.vue'
import Params from  '@/components/goods/Params.vue'
import GoodsList from '@/components/goods/LIst.vue'
import Add from '@/components/goods/Add.vue'
import Order from '@/components/order/Order'
import Report from '@/components/report/Report'

Vue.use(VueRouter)

const routes = [
   {path : '/' , redirect: '/login'},
  { path: '/login', component: Login },
  {
    path: '/home', component: Home,
     redirect: '/welcome',
    children: [
    {path : '/welcome' , component: Welcome},
    {path : '/users' , component: Users},
    {path : '/rights' , component: Rigths},
    {path : '/roles' , component: Roles},
    {path : '/categories' , component: Cate},
    {path : '/params' , component: Params},
    {path : '/goods' , component: GoodsList},
    {path : '/goods/add' , component: Add},
    {path : '/orders' , component: Order},
    {path : '/reports' , component: Report},
  ]},
]

const router = new VueRouter({
  routes
})

//挂载路由守卫
router.beforeEach((to, from, next) => {
  // to表示要跳转的路径
  //  from 表示来源路径
  //判断是否访问登录页
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = sessionStorage.getItem('token')
  //判断是否由token 如果没有就强制跳转到login
  if (!tokenStr) return next('/login')
  next()
})

export default router
